The Bitcoin Fog appeal case focuses on jurisdictional disputes, with the U.S. Department of Justice asserting global applicability

The U.S. Court of Appeals is hearing the appeal case of Roman Sterlingov, focusing on the key discussion of whether cryptocurrency services are subject to U.S. law. The case centers on: whether a small number of transactions conducted by law enforcement in Washington is sufficient to establish jurisdiction; and the reliability of evidence identifying the defendant through "IP overlap analysis" by the FBI. The U.S. Department of Justice argues that Bitcoin Fog, as a global money transfer service aimed at U.S. users, should be bound by U.S. law; while the defense questions the law enforcement's "artificial creation of jurisdiction."